diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/scsi/ufs/ufshcd.h | 55 |
1 files changed, 53 insertions, 2 deletions
diff --git a/include/linux/scsi/ufs/ufshcd.h b/include/linux/scsi/ufs/ufshcd.h index 18a4ec1509d9..4d877170d268 100644 --- a/include/linux/scsi/ufs/ufshcd.h +++ b/include/linux/scsi/ufs/ufshcd.h @@ -171,6 +171,10 @@ struct ufs_pm_lvl_states { * @ucd_req_ptr: UCD address of the command * @ucd_rsp_ptr: Response UPIU address for this command * @ucd_prdt_ptr: PRDT address of the command + * @utrd_dma_addr: UTRD dma address for debug + * @ucd_prdt_dma_addr: PRDT dma address for debug + * @ucd_rsp_dma_addr: UPIU response dma address for debug + * @ucd_req_dma_addr: UPIU request dma address for debug * @cmd: pointer to SCSI command * @sense_buffer: pointer to sense buffer address of the SCSI command * @sense_bufflen: Length of the sense buffer @@ -179,6 +183,7 @@ struct ufs_pm_lvl_states { * @task_tag: Task tag of the command * @lun: LUN of the command * @intr_cmd: Interrupt command (doesn't participate in interrupt aggregation) + * @issue_time_stamp: time stamp for debug purposes */ struct ufshcd_lrb { struct utp_transfer_req_desc *utr_descriptor_ptr; @@ -186,6 +191,11 @@ struct ufshcd_lrb { struct utp_upiu_rsp *ucd_rsp_ptr; struct ufshcd_sg_entry *ucd_prdt_ptr; + dma_addr_t utrd_dma_addr; + dma_addr_t ucd_req_dma_addr; + dma_addr_t ucd_rsp_dma_addr; + dma_addr_t ucd_prdt_dma_addr; + struct scsi_cmnd *cmd; u8 *sense_buffer; unsigned int sense_bufflen; @@ -195,6 +205,7 @@ struct ufshcd_lrb { int task_tag; u8 lun; /* UPIU LUN id field is only 8-bit wide */ bool intr_cmd; + ktime_t issue_time_stamp; }; /** @@ -294,6 +305,7 @@ struct ufs_pwr_mode_info { * should be reset. * @crypto_engine_reset_err: resets the saved error status of * the cryptographic engine + * @dbg_register_dump: used to dump controller debug information */ struct ufs_hba_variant_ops { const char *name; @@ -320,6 +332,7 @@ struct ufs_hba_variant_ops { int (*crypto_engine_eh)(struct ufs_hba *); int (*crypto_engine_get_err)(struct ufs_hba *); void (*crypto_engine_reset_err)(struct ufs_hba *); + void (*dbg_register_dump)(struct ufs_hba *hba); }; /* clock gating state */ @@ -411,14 +424,52 @@ struct ufs_init_prefetch { u32 icc_level; }; -#ifdef CONFIG_DEBUG_FS +#define UIC_ERR_REG_HIST_LENGTH 8 +/** + * struct ufs_uic_err_reg_hist - keeps history of uic errors + * @pos: index to indicate cyclic buffer position + * @reg: cyclic buffer for registers value + * @tstamp: cyclic buffer for time stamp + */ +struct ufs_uic_err_reg_hist { + int pos; + u32 reg[UIC_ERR_REG_HIST_LENGTH]; + ktime_t tstamp[UIC_ERR_REG_HIST_LENGTH]; +}; + +/** + * struct ufs_stats - keeps usage/err statistics + * @enabled: enable tagstats for debugfs + * @tag_stats: pointer to tag statistic counters + * @q_depth: current amount of busy slots + * @err_stats: counters to keep track of various errors + * @hibern8_exit_cnt: Counter to keep track of number of exits, + * reset this after link-startup. + * @last_hibern8_exit_tstamp: Set time after the hibern8 exit. + * Clear after the first successful command completion. + * @pa_err: tracks pa-uic errors + * @dl_err: tracks dl-uic errors + * @nl_err: tracks nl-uic errors + * @tl_err: tracks tl-uic errors + * @dme_err: tracks dme errors + */ struct ufs_stats { +#ifdef CONFIG_DEBUG_FS bool enabled; u64 **tag_stats; int q_depth; int err_stats[UFS_ERR_MAX]; +#endif + u32 hibern8_exit_cnt; + ktime_t last_hibern8_exit_tstamp; + struct ufs_uic_err_reg_hist pa_err; + struct ufs_uic_err_reg_hist dl_err; + struct ufs_uic_err_reg_hist nl_err; + struct ufs_uic_err_reg_hist tl_err; + struct ufs_uic_err_reg_hist dme_err; }; +#ifdef CONFIG_DEBUG_FS struct debugfs_files { struct dentry *debugfs_root; struct dentry *tag_stats; @@ -660,8 +711,8 @@ struct ufs_hba { struct ufs_dev_info dev_info; bool auto_bkops_enabled; -#ifdef CONFIG_DEBUG_FS struct ufs_stats ufs_stats; +#ifdef CONFIG_DEBUG_FS struct debugfs_files debugfs_files; #endif |